I've had a Tracfone Motorola W370 for a couple of years - it's sort of an economy version of their Razor. It had "double minutes for life" when I bought it, plus I usually get an extra 20 or 30 minutes by entering a promotional code (found via google) when I get another card and apply it on line. Activated in central Texas, I've used it with no issues locally as well as in Dallas, San Diego, Pasadena, Cincinnati, Chicago, Minnesota, and various other places in the lower 48.
I only use it as a phone. Period. And then usually only for instances when I don't have a landline. No texting. No games. No websurfing. So a 60 minute card every 3 months - at $19.99 - is fine. (I have plenty of minutes, but if you don't get a new card every 3 months, the minutes expire.)
I have one quibble - TracFone has disabled some features. For example, if you want a different ringtone, you MUST buy it through them. (They block MIDI and other files from downloading off of other sites, or as attachments to emails.
)
But for about $7/month, I'll put up with that.